56577221823 has 8 divisors (see below), whose sum is σ = 79406627200. Its totient is φ = 35732982168.

The previous prime is 56577221821. The next prime is 56577221839. The reversal of 56577221823 is 32812277565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56577221823 - 2¹ = 56577221821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56577221821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496291363 + ... + 496291476.

It is an arithmetic number, because the mean of its divisors is an integer number (9925828400).

Almost surely, 2^56577221823 is an apocalyptic number.

56577221823 is a deficient number, since it is larger than the sum of its proper divisors (22829405377).

56577221823 is a wasteful number, since it uses less digits than its factorization.

56577221823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992582861.

The product of its digits is 1411200, while the sum is 48.

The spelling of 56577221823 in words is "fifty-six billion, five hundred seventy-seven million, two hundred twenty-one thousand, eight hundred twenty-three".